What was found
WHILE IN HEAVY CHECK FOUND CORROSION AFT WET AREA ON GUSSET AT FRAME 90 AND INTERCOSTAL OUTBOARD OF LH TRACK BEAM. REMOVED CORROSION BY BLENDING ON GUSSET AT FRAME 90 AND INTERCOSTAL OUTBOARD OF LH TRACK BEAM (AFT WET: H-100% LOSS L-.757" W-.174" NOMINAL .040" OUT OF LIMITS.) REMOVED LOCATED AND DRILLED NEW AFT WET AREA ON GUSSET AT FRAME 90 AND INTERCOSTAL OUTBOARD OF LH TRACK BEAM REF SRM 51-40-02, 51-40-08 ,APPLIED ALODINE AT HOLES RIVETS SRM 51-23-04 PO# 243026 INSTALLED NEW AFT WET AREA ON GUSSET AT FRAME 90 AND INTERCOSTAL OUTBOARD OF LH TRACK BEAM REF SRM 51-40-02, 51-40-08